Agriculture: Grape Pest Management Guidelines

Postharvest

This year-round program section covers the major pests of table grapes grown in California. For wine and raisin grapes, see the WINE AND RAISIN GRAPE YEAR-ROUND PROGRAM

About Postharvest

What should you be doing during this time?

Continue monitoring for vine mealybug on fruit and foliage.

Treat if needed according to the Pest Management Guidelines.

If vine mealybug is present, steam-sanitize equipment before moving to uninfested areas.

In the San Joaquin Valley look for European fruit lecanium scale on leaves.

Treat if needed just before leaf drop, according to the Pest Management Guidelines.

Continue to mark and remove vines infested with diseases such as:

Carry out sanitation activities and vine surgery for trunk diseases well before the first fall rain event:

Continue to monitor for western grapeleaf skeletonizer on early harvested varieties.

In the Coachella Valley, sample for nematodes in October if not already done in spring.

Check sticky traps for glassy-winged sharpshooters.

Text Updated: 07/15